56651136 has 64 divisors (see below), whose sum is σ = 155366400. Its totient is φ = 18270720.

The previous prime is 56651129. The next prime is 56651159. The reversal of 56651136 is 63115665.

It is a tau number, because it is divible by the number of its divisors (64).

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 56651097 and 56651106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9525 + ... + 14283.

It is an arithmetic number, because the mean of its divisors is an integer number (2427600).

Almost surely, 2^56651136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56651136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77683200).

56651136 is an abundant number, since it is smaller than the sum of its proper divisors (98715264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56651136 is a wasteful number, since it uses less digits than its factorization.

56651136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807 (or 4795 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 56651136 is about 7526.6948921821. The cubic root of 56651136 is about 384.0633576014.

The spelling of 56651136 in words is "fifty-six million, six hundred fifty-one thousand, one hundred thirty-six".